/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package org.dom4j.dtd;

/**
 * <p> <code>InternalEntityDecl</code> represents an internal entity
 * declaration in a DTD. </p>
 * 
 * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a>
 * @version $Revision: 1.2 $
 */
public class InternalEntityDecl
{
   /** Holds value of property name. */
   private String name;

   /** Holds value of property value. */
   private String value;

   public InternalEntityDecl()
   {
   }

   public InternalEntityDecl(String name, String value)
   {
      this.name = name;
      this.value = value;
   }

   /**
    * Getter for property name.
    * 
    * @return Value of property name.
    */
   public String getName()
   {
      return name;
   }

   /**
    * Setter for property name.
    * 
    * @param name New value of property name.
    */
   public void setName(String name)
   {
      this.name = name;
   }

   /**
    * Getter for property value.
    * 
    * @return Value of property value.
    */
   public String getValue()
   {
      return value;
   }

   /**
    * Setter for property value.
    * 
    * @param value New value of property value.
    */
   public void setValue(String value)
   {
      this.value = value;
   }

   public String toString()
   {
      StringBuffer buffer = new StringBuffer("<!ENTITY ");

      if(name.startsWith("%"))
      {
         buffer.append("% ");
         buffer.append(name.substring(1));
      }
      else
      {
         buffer.append(name);
      }

      buffer.append(" \"");
      buffer.append(escapeEntityValue(value));
      buffer.append("\">");

      return buffer.toString();
   }

   private String escapeEntityValue(String text)
   {
      StringBuffer result = new StringBuffer();

      for(int i = 0; i < text.length(); i++)
      {
         char c = text.charAt(i);

         switch(c)
         {
         case '<':
            result.append("&#38;#60;");

            break;

         case '>':
            result.append("&#62;");

            break;

         case '&':
            result.append("&#38;#38;");

            break;

         case '\'':
            result.append("&#39;");

            break;

         case '\"':
            result.append("&#34;");

            break;

         default:

            if(c < 32)
            {
               result.append("&#" + (int) c + ";");
            }
            else
            {
               result.append(c);
            }

            break;
         }
      }

      return result.toString();
   }
}

/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived
 * from this Software without prior written permission of MetaStuff, Ltd. For
 * written permission, please contact dom4j-info@metastuff.com.
 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may
 * "DOM4J" appear in their names without prior written permission of MetaStuff,
 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */
